Join Capital, established in 2015 and headquartered in Berlin, Germany, is an early-stage venture capital firm focusing on Seed and Series A investments in Industry 4.0 and enterprise technology sectors across Europe. The company invests in innovative solutions that address real customer problems, with a particular interest in technologies such as machine learning, robotics, cloud computing, IoT, and smart sensors. Their portfolio companies operate in core business functions like operations, manufacturing, data analytics, and supply chain, aiming to maximize human capabilities and rethink essential processes. Join Capital typically invests between EUR 0.75 million to EUR 2 million, seeking minority stakes and preferring companies that have achieved product-market fit. The firm also considers ESG factors in its investment decisions.
Partner - Defence and Strategic Technology and Investor
Wanjiru Chabeda
Principal
Federico Fini
Associate
Julia Flaig
Principal
Oliver Hehl
Partner
Philippe von Klitzing
Investment Analyst
Sebastian Ribbentrop
Managing Partner
Tobias P. Schirmer
Partner
43 past transactions
Astrape Networks
Seed Round in 2025
Astrape powers the future of datacenters: more bandwidth, less power.
FaradaIC Sensors
Seed Round in 2025
FaradaIC Sensors focuses on developing miniaturized gas sensors aimed at enhancing dioxygen detection capabilities for electronic devices. By employing standard microfabrication techniques, the company effectively reduces both the size and power consumption of its sensors, leading to lower production costs. This innovative approach allows for the commoditization of gas sensors, making them accessible and affordable for a variety of Internet of Things applications. FaradaIC Sensors is positioned to capitalize on the growing demand for flexible and cost-effective gas sensing solutions in the expanding IoT market.
CamGraPhIC
Series A in 2025
CamGraPhIC is a developer of advanced graphene photonics technology aimed at enhancing optical telecommunications, particularly in 5G and data center environments. The company focuses on creating electro-optical engines that meet the increasing demand for data traffic while offering high data rates, low costs, and low power consumption. Their technology is compatible with various photonic materials, including silicon and silicon nitride, and can be integrated through scalable wafer-level processes. This capability allows for the production of next-generation optical transceivers, enabling clients to effectively utilize the bandwidth necessary for emerging digital applications such as cloud services and the Internet of Things.
Calvin Risk
Seed Round in 2024
Calvin Risk is a Zurich-based company that specializes in developing comprehensive solutions for assessing and managing the risks associated with commercial AI algorithms. Its risk assessment framework and management platform facilitate the evaluation and mitigation of potential risks, enabling industries such as insurance, banking, retail, and telecommunications to effectively manage their exposure to AI-related incidents. The platform consolidates models and specifications in one location, allowing for a thorough analysis of negative consequences and promoting reliable and responsible AI usage.
Quantum Optics Jena
Series A in 2024
Quantum Optics Jena specializes in quantum technology solutions aimed at enhancing data security and communication systems. The company has developed a compact, high-performance entangled photon source that is utilized in quantum key distribution and various quantum optical experiments. Their innovative tools cater to secure communication needs and are also applicable in biomedical imaging and for the scientific community, allowing for deeper insights into matter and biological processes through advanced imaging and sensing capabilities.
SEMRON
Seed Round in 2024
SEMRON is a technology company that specializes in developing artificial intelligence inference chips, characterized by their small physical footprint and high computing power. Founded in 2020 by Aron Kirschen and Kai-Uwe Demasius, SEMRON leverages proprietary technology to create energy-efficient semiconductor devices. The company's offerings include complementary metal oxide semiconductors and compatible semiconductor technology, allowing clients to utilize advanced AI chips that optimize performance while minimizing space requirements.
Generative Engineering
Pre Seed Round in 2023
Generative Engineering is a pioneering deep-tech startup that operates a cutting-edge platform designed to augment existing engineering tools. The platform's core functionality lies in generating, testing, and simulating numerous engineering designs in a fraction of the time traditionally required, thereby significantly accelerating product development. This innovative approach spans the entire engineering process, from designing individual components to developing complex systems, and is applicable across various stages, including concept engineering, systems integration, and cost engineering. The platform's strength lies in its powerful code-first integration framework, which allows engineers to seamlessly incorporate existing tools and leverage out-of-the-box integrations, fostering innovative designs across all real-world products and leading to substantial cost reductions.
Frenetic
Series A in 2023
Frenetic specializes in the design and optimization of magnetic components, leveraging power electronics expertise alongside advanced simulation tools and artificial intelligence. The company's platform facilitates a streamlined transition from concept to production for engineers, offering precise modeling capabilities for power converter designs across various topologies. The Frenetic Simulator utilizes real-world physics-based optimization, allowing for customization of core materials, loss analysis, and integration of thermal modeling with high accuracy. Automated reporting features provide detailed insights into losses, specifications, and bill of materials, enhancing validation processes. Additionally, Frenetic connects engineers with leading manufacturers, ensuring effective design-to-production workflows. The platform is continually updated to address the demands of high-frequency applications, energy efficiency, and next-generation power architectures.
NEWTWEN
Series A in 2023
NEWTWEN has developed an advanced software engineering platform focused on creating real-time embedded virtual sensors for the model predictive control and diagnostics of electromechanical systems. Central to its offering is a highly accurate digital twin that replicates the electrodynamic and thermodynamic behavior of devices like electric motors and generators across various operating conditions. The platform features a proprietary mathematical framework that significantly reduces computational complexity, enabling ultra-efficient digital models to operate directly on-device in real time. This capability allows for continuous estimation of critical parameters, such as internal temperature, thousands of times per second, providing deep insights into system performance. By facilitating smarter control strategies and enabling capabilities like predictive maintenance and anomaly detection, NEWTWEN's technology aims to enhance the reliability and lifespan of electrical drives and automation systems while streamlining the development process for digital twins.
Modelwise
Seed Round in 2023
Modelwise is an industrial technology company based in Munich that specializes in automating safety engineering through artificial intelligence. The company has developed a functional safety assessment platform that integrates smoothly into engineers' workflows, enhancing the quality and speed of safety analysis. This innovative software allows for mathematically complete services that help identify and avoid design flaws that could pose risks to humans and the environment. By providing instant feedback on system designs, Modelwise enables engineers to create safer and more efficient products.
IPRally
Series A in 2023
IPRally is a company that specializes in enhancing the patent business through an innovative AI platform designed to analyze and understand patent intricacies. With a team of five experts in patents, software, and artificial intelligence, IPRally utilizes historical patent examination data to train a neural network, mimicking the thought process of patent professionals. The platform offers rapid and precise evaluations of patentability, invalidation searches, and freedom-to-operate analyses. By employing a graph-based approach, it enables users to conduct advanced patent searches efficiently, addressing the complexities associated with navigating existing patents. This unique combination of AI and deep knowledge of patent processes positions IPRally as a valuable resource for businesses seeking to optimize their patent strategies.
YapıRadar.com
Seed Round in 2022
YapıRadar.com is an online marketplace established in 2018 and based in Istanbul, designed to facilitate the exchange of goods and services between suppliers and contractors in the construction sector. The platform offers comprehensive information on various construction projects, including details about project authorities, construction stages, site images, locations, and construction areas. By enabling easy access to thousands of ongoing and upcoming projects, YapıRadar.com helps professionals quickly find relevant bidding opportunities and streamlines the procurement process for contractors. This digital platform aims to enhance efficiency in the construction industry, reducing research costs and minimizing time lost in project identification.
Codacy
Series B in 2022
Codacy is an automated code review tool designed to assist developers in optimizing their code review processes and managing technical debt more effectively. By analyzing code and grading code patterns, Codacy enables developers to monitor project health and track new issues by severity level for each commit and pull request. This functionality allows for a more efficient code quality assessment, helping to identify problematic patterns and bugs while reducing the time spent on code style reviews. Ultimately, Codacy aims to streamline the development workflow, allowing teams to focus on delivering high-quality software more rapidly.
Opteran
Venture Round in 2022
Opteran focuses on reverse-engineering biological brains to develop neuromorphic software designed for machine autonomy. By leveraging insights gained from 600 million years of evolution, the company creates robust and cost-effective solutions that enable autonomous operations in challenging environments. The Opteran Mind is an integrated and modular platform that provides general-purpose autonomy without relying on artificial intelligence, data centers, or extensive training. This innovative approach allows clients to create autonomous machines capable of navigating complex spaces, performing tasks such as cleaning and servicing while ensuring safety around people.
Digital Spine
Series A in 2022
Digital Spine is focused on transforming the traditional understanding of buildings by integrating digital technology and real-time connectivity into vertical mobility systems, particularly elevators. By connecting elevator controllers to the cloud, the company develops innovative IoT solutions that allow for enhanced monitoring and management of building systems. This digital transformation aims to create a more sustainable and efficient operating environment, enabling building owners to lower costs, improve maintenance predictability, and facilitate the integration of additional smart services. With nearly a century of experience in machinery and engineering, Digital Spine leverages this expertise to deliver cutting-edge cloud-based solutions that redefine the functionality and purpose of modern buildings.
How.FM
Seed Round in 2022
how.fm is a digital training platform designed to enhance the onboarding and skill development of manual laborers. By offering a hands-free experience with Alexa voice interaction, the platform allows warehouse operators to train and support their workers effectively from any location. Its features include automatic translations and interactive experiences, making it easier for clients to deliver ongoing training and self-support for blue-collar workers. This innovative approach aims to streamline the training process, ensuring that manual laborers receive the necessary skills and support in a digital format.
Valispace
Seed Round in 2022
Valispace GmbH, founded in 2015 and based in Bremen, Germany, offers a browser-based engineering software platform designed to enhance productivity in the development of complex hardware products such as satellites and rockets. The platform serves as an Engineering Information Management (EIM) system, facilitating team collaboration throughout the engineering lifecycle. It supports various aspects of hardware development, including requirements management, data-driven functional design, product architecture, and detailed systems design. Valispace’s tool provides full traceability, enabling clients to manage test procedures and access information about decisions made during the development process. By streamlining dynamic engineering data, the platform helps reduce development time, improve product quality, and lower costs across projects.
Silico
Seed Round in 2022
Silico operates a no-code simulation platform that helps organizations map, understand, and analyze the interdependencies within their business operations. Their software enables users to conduct data analysis, organize results into management dashboards, and publish these as web applications for internal use. By facilitating the creation of dynamic representations of an enterprise, Silico's platform supports the development of a Digital Twin of the Enterprise, allowing clients to enhance their decision-making processes and operational efficiency.
Frenetic
Venture Round in 2021
Frenetic specializes in the design and optimization of magnetic components, leveraging power electronics expertise alongside advanced simulation tools and artificial intelligence. The company's platform facilitates a streamlined transition from concept to production for engineers, offering precise modeling capabilities for power converter designs across various topologies. The Frenetic Simulator utilizes real-world physics-based optimization, allowing for customization of core materials, loss analysis, and integration of thermal modeling with high accuracy. Automated reporting features provide detailed insights into losses, specifications, and bill of materials, enhancing validation processes. Additionally, Frenetic connects engineers with leading manufacturers, ensuring effective design-to-production workflows. The platform is continually updated to address the demands of high-frequency applications, energy efficiency, and next-generation power architectures.
36ZERO Vision
Seed Round in 2021
36ZERO Vision specializes in an AI-powered visual inspection system aimed at addressing various manufacturing quality challenges. The company's platform leverages artificial intelligence and machine learning to provide real-time tracking of parts, anomalies, and defects, enabling automated fault detection. This technology enhances manufacturing agility and quality while optimizing factory throughput and reducing capital expenditures. By facilitating immediate identification and resolution of quality issues, 36ZERO Vision supports clients in achieving higher transparency and productivity in their operations.
RheoCube
Venture Round in 2021
RheoCube is a cloud-based simulation platform that specializes in complex fluids, providing a digital alternative to traditional trial-and-error methods commonly used in laboratories for product prototyping and material research. Developed by Electric Ant Lab and led by Dr. Eric Lorenz, an expert in computational physics, RheoCube aims to streamline research and development for clients primarily in the chemistry sector, including industries such as food, coatings, homecare, personal care, and specialty chemicals. The platform enables users to conduct virtual prototyping and detailed scientific simulations, significantly reducing the need for expensive laboratory experiments and enhancing efficiency in the development process.
IPRally
Seed Round in 2021
IPRally is a company that specializes in enhancing the patent business through an innovative AI platform designed to analyze and understand patent intricacies. With a team of five experts in patents, software, and artificial intelligence, IPRally utilizes historical patent examination data to train a neural network, mimicking the thought process of patent professionals. The platform offers rapid and precise evaluations of patentability, invalidation searches, and freedom-to-operate analyses. By employing a graph-based approach, it enables users to conduct advanced patent searches efficiently, addressing the complexities associated with navigating existing patents. This unique combination of AI and deep knowledge of patent processes positions IPRally as a valuable resource for businesses seeking to optimize their patent strategies.
Opteran
Seed Round in 2020
Opteran focuses on reverse-engineering biological brains to develop neuromorphic software designed for machine autonomy. By leveraging insights gained from 600 million years of evolution, the company creates robust and cost-effective solutions that enable autonomous operations in challenging environments. The Opteran Mind is an integrated and modular platform that provides general-purpose autonomy without relying on artificial intelligence, data centers, or extensive training. This innovative approach allows clients to create autonomous machines capable of navigating complex spaces, performing tasks such as cleaning and servicing while ensuring safety around people.
Valispace
Seed Round in 2020
Valispace GmbH, founded in 2015 and based in Bremen, Germany, offers a browser-based engineering software platform designed to enhance productivity in the development of complex hardware products such as satellites and rockets. The platform serves as an Engineering Information Management (EIM) system, facilitating team collaboration throughout the engineering lifecycle. It supports various aspects of hardware development, including requirements management, data-driven functional design, product architecture, and detailed systems design. Valispace’s tool provides full traceability, enabling clients to manage test procedures and access information about decisions made during the development process. By streamlining dynamic engineering data, the platform helps reduce development time, improve product quality, and lower costs across projects.
Datapred
Series A in 2020
Datapred SA, founded in 2015 and based in Lausanne, Switzerland, specializes in developing machine learning software for direct material procurement. The company offers an optimization platform that assists large organizations in sectors such as industrial, logistics, and retail in addressing complex analysis and prediction challenges. By integrating price trend predictions with operational cost and constraint optimization, Datapred enables chief procurement officers to make informed decisions about purchasing energy and raw materials. This approach not only helps reduce procurement costs by 3-5% annually but also enhances procurement processes from sourcing to payment by facilitating real-time analysis of market trends and operational factors.
Proxyclick
Series B in 2020
Proxyclick SA is a web-based software company based in Brussels, Belgium, founded in 2004. The company specializes in visitor management solutions, offering a cloud-based platform that streamlines the process of managing office visitors from invitation to checkout. Proxyclick's software not only facilitates the management of visitors but also helps organizations meet security requirements by ensuring the confidentiality of visitor data. This allows clients to maintain their security policies while remaining compliant with relevant regulations. Additionally, Proxyclick provides a service desk solution that allows companies to handle various employee requests efficiently.
Codacy
Venture Round in 2019
Codacy is an automated code review tool designed to assist developers in optimizing their code review processes and managing technical debt more effectively. By analyzing code and grading code patterns, Codacy enables developers to monitor project health and track new issues by severity level for each commit and pull request. This functionality allows for a more efficient code quality assessment, helping to identify problematic patterns and bugs while reducing the time spent on code style reviews. Ultimately, Codacy aims to streamline the development workflow, allowing teams to focus on delivering high-quality software more rapidly.
Prodsmart
Seed Round in 2019
Prodsmart, Informática, Lda. is a software development company based in Lisbon, Portugal, specializing in analytics and optimization solutions for manufacturing assembly lines and job shops. Founded in 2013, the company offers a real-time tracking system that helps factories transition to a digital smart factory model by eliminating paperwork and collecting data via smartphones on the shop floor. Its software provides various functionalities, including shop floor management, real-time dashboards, planning and scheduling, product traceability, inventory management, and custom reporting, all accessible remotely. Prodsmart serves a diverse range of industries, such as automotive, construction, electronics, food and beverage, and textiles, among others. Notable clients include Componor, Mitsubishi, and Alualpha, reflecting the company's significant presence in the manufacturing sector.
WIZZCAD
Series A in 2019
Wizzcad is a company based in Arpajon, France, that specializes in developing a cloud-based field operations platform tailored for the engineering and construction industry. Founded in 2013, Wizzcad offers a Software as a Service (SaaS) solution designed to facilitate the digital transformation of construction projects throughout their lifecycle. The platform supports both two-dimensional and three-dimensional projects, allowing users to manage various business processes from design to operations and maintenance. By enabling the digitization of workflows, Wizzcad helps clients automate operational processes and enhances collaboration across all stages of building, public works, and industrial infrastructure projects. Its platform is accessible on multiple devices, including PCs, smartphones, and tablets.
Office App
Venture Round in 2019
Office App is a tenant engagement platform that aims to enhance the experience of professionals in office environments. Founded in 2014 and headquartered in Amsterdam, the company focuses on digitally transforming workspaces by providing tools and services that facilitate communication among employees. The platform allows users to share information, receive updates, book meeting rooms, and submit maintenance requests to property managers. By incorporating client feedback, data, and market trends into its design and development, Office App seeks to personalize and improve the management and experience of workspaces, ultimately revolutionizing how these environments are utilized.
Flexciton
Seed Round in 2019
Flexciton Ltd., established in 2016 and headquartered in London, UK, specializes in developing artificial intelligence-driven industrial planning and scheduling software for manufacturers. The company's core product is a web application that optimizes machine operation and maintenance schedules, reducing energy consumption and enhancing productivity. Flexciton's team, comprising 45 members, predominantly engineers and researchers, is dedicated to advancing manufacturing efficiency through AI technology.
German Bionic
Seed Round in 2018
German Bionic is a manufacturer of innovative exoskeletons designed to enhance efficiency and productivity in industrial settings. The company has developed the Cray X, the world's first connected exoskeleton, which integrates with Smart Factory systems to self-learn and reinforce proper lifting techniques, thereby preventing incorrect posture. This technology serves as an intelligent interface between humans and machines, providing valuable data that demonstrates its effectiveness in protecting workers' health and significantly reducing the risk of accidents and strain-related injuries. Supported by prominent investors such as Samsung Catalyst Fund and Storm Ventures, German Bionic has received numerous accolades, including the German Entrepreneur Award and the Automatica Award, highlighting its impact on improving workplace safety and operational processes.
CloudNC
Series A in 2018
CloudNC Ltd. is a London-based company that specializes in developing software to automate the programming of computerized numerical control (CNC) milling machines. Established in 2015, CloudNC aims to modernize the manufacturing industry by creating advanced software that allows factories to autonomously produce precision parts, which are essential for various aspects of modern life, including automotive, aerospace, and electronics. The company's technology transforms CNC milling machines into user-friendly devices that require minimal human intervention, thus enhancing efficiency, reducing lead times, and increasing scalability for manufacturers. By focusing on automation and sustainability, CloudNC seeks to revolutionize the manufacturing process, making it ten times more efficient and positioning itself at the forefront of a $150 billion industry.
beWanted
Seed Round in 2018
beWanted is an online platform based in Madrid, Spain, that facilitates the connection between students and graduates seeking their first employment and companies looking for young talent. Launched in 2015 by Juan Torroba, the platform provides tailored solutions to streamline talent research for employers. It offers a database with integrated information and search parameters, enabling companies to efficiently find suitable candidates. Additionally, beWanted allows clients to create and manage customized Talent Pools, which help employers match with candidates more effectively. The platform also equips students with tools to navigate the labor market and discover job opportunities aligned with their profiles, ultimately enhancing the recruitment process for both parties.
Prodsmart
Seed Round in 2018
Prodsmart, Informática, Lda. is a software development company based in Lisbon, Portugal, specializing in analytics and optimization solutions for manufacturing assembly lines and job shops. Founded in 2013, the company offers a real-time tracking system that helps factories transition to a digital smart factory model by eliminating paperwork and collecting data via smartphones on the shop floor. Its software provides various functionalities, including shop floor management, real-time dashboards, planning and scheduling, product traceability, inventory management, and custom reporting, all accessible remotely. Prodsmart serves a diverse range of industries, such as automotive, construction, electronics, food and beverage, and textiles, among others. Notable clients include Componor, Mitsubishi, and Alualpha, reflecting the company's significant presence in the manufacturing sector.
Proxyclick
Series A in 2017
Proxyclick SA is a web-based software company based in Brussels, Belgium, founded in 2004. The company specializes in visitor management solutions, offering a cloud-based platform that streamlines the process of managing office visitors from invitation to checkout. Proxyclick's software not only facilitates the management of visitors but also helps organizations meet security requirements by ensuring the confidentiality of visitor data. This allows clients to maintain their security policies while remaining compliant with relevant regulations. Additionally, Proxyclick provides a service desk solution that allows companies to handle various employee requests efficiently.
Codacy
Series A in 2017
Codacy is an automated code review tool designed to assist developers in optimizing their code review processes and managing technical debt more effectively. By analyzing code and grading code patterns, Codacy enables developers to monitor project health and track new issues by severity level for each commit and pull request. This functionality allows for a more efficient code quality assessment, helping to identify problematic patterns and bugs while reducing the time spent on code style reviews. Ultimately, Codacy aims to streamline the development workflow, allowing teams to focus on delivering high-quality software more rapidly.
Flexciton
Seed Round in 2017
Flexciton Ltd., established in 2016 and headquartered in London, UK, specializes in developing artificial intelligence-driven industrial planning and scheduling software for manufacturers. The company's core product is a web application that optimizes machine operation and maintenance schedules, reducing energy consumption and enhancing productivity. Flexciton's team, comprising 45 members, predominantly engineers and researchers, is dedicated to advancing manufacturing efficiency through AI technology.
CloudNC
Seed Round in 2016
CloudNC Ltd. is a London-based company that specializes in developing software to automate the programming of computerized numerical control (CNC) milling machines. Established in 2015, CloudNC aims to modernize the manufacturing industry by creating advanced software that allows factories to autonomously produce precision parts, which are essential for various aspects of modern life, including automotive, aerospace, and electronics. The company's technology transforms CNC milling machines into user-friendly devices that require minimal human intervention, thus enhancing efficiency, reducing lead times, and increasing scalability for manufacturers. By focusing on automation and sustainability, CloudNC seeks to revolutionize the manufacturing process, making it ten times more efficient and positioning itself at the forefront of a $150 billion industry.
Codacy
Seed Round in 2015
Codacy is an automated code review tool designed to assist developers in optimizing their code review processes and managing technical debt more effectively. By analyzing code and grading code patterns, Codacy enables developers to monitor project health and track new issues by severity level for each commit and pull request. This functionality allows for a more efficient code quality assessment, helping to identify problematic patterns and bugs while reducing the time spent on code style reviews. Ultimately, Codacy aims to streamline the development workflow, allowing teams to focus on delivering high-quality software more rapidly.
beWanted
Seed Round in 2015
beWanted is an online platform based in Madrid, Spain, that facilitates the connection between students and graduates seeking their first employment and companies looking for young talent. Launched in 2015 by Juan Torroba, the platform provides tailored solutions to streamline talent research for employers. It offers a database with integrated information and search parameters, enabling companies to efficiently find suitable candidates. Additionally, beWanted allows clients to create and manage customized Talent Pools, which help employers match with candidates more effectively. The platform also equips students with tools to navigate the labor market and discover job opportunities aligned with their profiles, ultimately enhancing the recruitment process for both parties.
ShareIQ
Venture Round in 2015
ShareIQ develops image intelligence technology designed to help brands maximize the value of their content on the web. The platform analyzes, acquires, and indexes a vast number of digital images, enabling brands to understand how their earned media influences brand discovery, social sharing, and purchasing decisions. By leveraging proprietary image DNA technology, ShareIQ has processed over 1 trillion images, allowing for precise tracking of both original and republished visual content. This capability enables brands to engage effectively with their audiences and optimize their content marketing efforts. The ShareIQ platform aims to make earned media as measurable and accountable as traditional paid media marketing, providing insights that empower brand marketing teams to enhance their strategies and improve return on investment.
Optics11
Optics11 B.V., established in 2011 and headquartered in Amsterdam, specializes in developing and marketing advanced optical fiber sensing systems. The company is renowned for its ultra-early warning systems, designed to protect critical infrastructure in the energy and defense sectors. Optics11's innovative, low signal-to-noise ratio sensors set industry standards, offering precise data and insights for enhanced safety and operational efficiency. Their portfolio includes solutions for underwater acoustics, non-destructive testing, and structural health monitoring of vital assets. With a team of approximately 80 specialized professionals across Amsterdam and a cutting-edge R&D center in Dublin, Optics11 serves global clients, including those in the defense industry and life sciences.
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